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Finding the Fourth Proportional to 93,031.29, 128,379.30 and 52,747.77

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Solution

The fourth proportional to 93,031.29, 128,379.30 and 52,747.77 is: 72,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.29 : 128,379.30 = 52,747.77 : x
  2. Step 2: Convert to fraction form
    93,031.29/128,379.30 = 52,747.77/x
  3. Step 3: Cross multiply
    93,031.29x = 128,379.30 × 52,747.77
  4. Step 4: Simplify right side
    93,031.29x = 6,771,722,270.58
  5. Step 5: Solve for x
    x = 6,771,722,270.58/93,031.29
  6. Step 6: Final answer
    x = 72,789.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.